From patchwork Thu Jul 7 16:11:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akhil P Oommen X-Patchwork-Id: 588167 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0F663C43334 for ; Thu, 7 Jul 2022 16:13:12 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236316AbiGGQNK (ORCPT ); Thu, 7 Jul 2022 12:13:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46926 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236272AbiGGQMh (ORCPT ); Thu, 7 Jul 2022 12:12:37 -0400 Received: from alexa-out.qualcomm.com (alexa-out.qualcomm.com [129.46.98.28]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D1A3A1D318; Thu, 7 Jul 2022 09:12:09 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1657210330; x=1688746330; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version; bh=KkwelwdXDmhFR4sAJprFChmFv9QPBXU8ZPnRKHLF3Z0=; b=UqHMszEIvHOliG/DuVYGoQp1AU6tU9K1vyeEzB2htc0M61vCkK//9KzY Lo9plmTaMEmZorE8s5uX9oJPRozdlcGfQTh/nLqDIEFhewjmhFyIYKH7f MVtYHunGjt++97MdF5gFaTTVw3rxYcxj8E8lyi1kMOoCk73+rLMMpOCwL I=; Received: from ironmsg09-lv.qualcomm.com ([10.47.202.153]) by alexa-out.qualcomm.com with ESMTP; 07 Jul 2022 09:12:10 -0700 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg09-lv.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 Jul 2022 09:12:09 -0700 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Thu, 7 Jul 2022 09:12:08 -0700 Received: from hyd-lnxbld559.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.22; Thu, 7 Jul 2022 09:12:03 -0700 From: Akhil P Oommen To: freedreno , , , Rob Clark , Bjorn Andersson CC: Jordan Crouse , Douglas Anderson , Matthias Kaehlcke , Jonathan Marek , Akhil P Oommen , Abhinav Kumar , =?utf-8?q?Christian_K=C3=B6nig?= , Dan Carpenter , "Daniel Vetter" , David Airlie , Dmitry Baryshkov , Sean Paul , Wang Qing , Subject: [PATCH 7/7] drm/msm/a6xx: Handle GMU prepare-slumber hfi failure Date: Thu, 7 Jul 2022 21:41:02 +0530 Message-ID: <20220707213950.7.I54815c7c36b80d4725cd054e536365250454452f@changeid> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1657210262-17166-1-git-send-email-quic_akhilpo@quicinc.com> References: <1657210262-17166-1-git-send-email-quic_akhilpo@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) To nalasex01a.na.qualcomm.com (10.47.209.196) Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org When prepare-slumber hfi fails, we should follow a6xx_gmu_force_off() sequence. Signed-off-by: Akhil P Oommen --- drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c index db05942..3d00ef9 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gmu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gmu.c @@ -1082,7 +1082,11 @@ static void a6xx_gmu_shutdown(struct a6xx_gmu *gmu) a6xx_bus_clear_pending_transactions(adreno_gpu); /* tell the GMU we want to slumber */ - a6xx_gmu_notify_slumber(gmu); + ret = a6xx_gmu_notify_slumber(gmu); + if (ret) { + a6xx_gmu_force_off(gmu); + return; + } ret = gmu_poll_timeout(gmu, REG_A6XX_GPU_GMU_AO_GPU_CX_BUSY_STATUS, val,